Kaoru, a friend from the piano class Ruli once attended, has gone missing. While searching for her, Ruli and the gang find a strange dent and her shoes. And as they continue their search, Hiro is suddenly asked a mysterious riddle.
They're not even answering their phones!
!إنّهم لا يردّون على هواتفهم حتّى
Sie gehen nicht mal ans Handy.
Ni siquiera responden al celular.
Ni siquiera responden al móvil.
Le minimum serait de décrocher,
quoi !
Non rispondono nemmeno al telefono,
 si può sapere che combinano?!
Não atendem nem o celular!
Ещё и трубку не берут.